221743920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:212

約数の個数: 240

約数和(自身を含む): 767450880

約数和(自身を除く): 545706960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 23, 24, 30, 34, 40, 46, 48, 51, 60, 68, 69, 80, 85, 92, 102, 115, 120, 136, 138, 139, 170, 184, 204, 230, 240, 255, 272, 276, 278, 289, 340, 345, 368, 391, 408, 417, 460, 510, 552, 556, 578, 680, 690, 695, 782, 816, 834, 867, 920, 1020, 1104, 1112, 1156, 1173, 1360, 1380, 1390, 1445, 1564, 1668, 1734, 1840, 1955, 2040, 2085, 2224, 2312, 2346, 2363, 2760, 2780, 2890, 3128, 3197, 3336, 3468, 3910, 4080, 4170, 4335, 4624, 4692, 4726, 5520, 5560, 5780, 5865, 6256, 6394, 6647, 6672, 6936, 7089, 7820, 8340, 8670, 9384, 9452, 9591, 11120, 11560, 11730, 11815, 12788, 13294, 13872, 14178, 15640, 15985, 16680, 17340, 18768, 18904, 19182, 19941, 23120, 23460, 23630, 25576, 26588, 28356, 31280, 31970, 33235, 33360, 34680, 35445, 37808, 38364, 39882, 40171, 46920, 47260, 47955, 51152, 53176, 54349, 56712, 63940, 66470, 69360, 70890, 76728, 79764, 80342, 93840, 94520, 95910, 99705, 106352, 108698, 113424, 120513, 127880, 132940, 141780, 153456, 159528, 160684, 163047, 189040, 191820, 199410, 200855, 217396, 241026, 255760, 265880, 271745, 283560, 319056, 321368, 326094, 383640, 398820, 401710, 434792, 482052, 531760, 543490, 567120, 602565, 642736, 652188, 767280, 797640, 803420, 815235, 869584, 923933, 964104, 1086980, 1205130, 1304376, 1595280, 1606840, 1630470, 1847866, 1928208, 2173960, 2410260, 2608752, 2771799, 3213680, 3260940, 3695732, 4347920, 4619665, 4820520, 5543598, 6521880, 7391464, 9239330, 9641040, 11087196, 13043760, 13858995, 14782928, 18478660, 22174392, 27717990, 36957320, 44348784, 55435980, 73914640, 110871960, 221743920]

約数ペア:

[(1, 221743920), (2, 110871960), (3, 73914640), (4, 55435980), (5, 44348784), (6, 36957320), (8, 27717990), (10, 22174392), (12, 18478660), (15, 14782928), (16, 13858995), (17, 13043760), (20, 11087196), (23, 9641040), (24, 9239330), (30, 7391464), (34, 6521880), (40, 5543598), (46, 4820520), (48, 4619665), (51, 4347920), (60, 3695732), (68, 3260940), (69, 3213680), (80, 2771799), (85, 2608752), (92, 2410260), (102, 2173960), (115, 1928208), (120, 1847866), (136, 1630470), (138, 1606840), (139, 1595280), (170, 1304376), (184, 1205130), (204, 1086980), (230, 964104), (240, 923933), (255, 869584), (272, 815235), (276, 803420), (278, 797640), (289, 767280), (340, 652188), (345, 642736), (368, 602565), (391, 567120), (408, 543490), (417, 531760), (460, 482052), (510, 434792), (552, 401710), (556, 398820), (578, 383640), (680, 326094), (690, 321368), (695, 319056), (782, 283560), (816, 271745), (834, 265880), (867, 255760), (920, 241026), (1020, 217396), (1104, 200855), (1112, 199410), (1156, 191820), (1173, 189040), (1360, 163047), (1380, 160684), (1390, 159528), (1445, 153456), (1564, 141780), (1668, 132940), (1734, 127880), (1840, 120513), (1955, 113424), (2040, 108698), (2085, 106352), (2224, 99705), (2312, 95910), (2346, 94520), (2363, 93840), (2760, 80342), (2780, 79764), (2890, 76728), (3128, 70890), (3197, 69360), (3336, 66470), (3468, 63940), (3910, 56712), (4080, 54349), (4170, 53176), (4335, 51152), (4624, 47955), (4692, 47260), (4726, 46920), (5520, 40171), (5560, 39882), (5780, 38364), (5865, 37808), (6256, 35445), (6394, 34680), (6647, 33360), (6672, 33235), (6936, 31970), (7089, 31280), (7820, 28356), (8340, 26588), (8670, 25576), (9384, 23630), (9452, 23460), (9591, 23120), (11120, 19941), (11560, 19182), (11730, 18904), (11815, 18768), (12788, 17340), (13294, 16680), (13872, 15985), (14178, 15640)]